Hi Guys - One side note - the full Qlik Sense Server product, released later this year - will still require installation on Windows, however - there will be browser based self-service and development capabilities (offering the same experience that exists with Sense Desktop today) - this will enable those who do own Macs (or other - non-windows machines) to develop on their workstations using a supported HTML5 compliant browser.
Mike Tarallo - Qlik
I thought I'd update this string now that Qlik Sense has been released.
You can try out Qlik Sense for free if you do not have a system that supports Qlik Sense Desktop.
There are fully interactive demo app at http://sense-demo.qlik.com/. (if you login at the top of the screen you can even create content)
If someone else creates an app they can share it with you by through Qlik Cloud.
Below you can find a link with all supported browsers that you can use in order to connect your Client to a Qlik Sense server (including our the demo site and Qlik Cloud).
I hope this helps.
You can download a Windows(7, 8, 8.1) VM free from Microsoft and run in your favourite VM Player(Virtualbox, VMWare Fusion, Parallels), the VM is for web developers, but there is a catch where the VM lasts only for three months, but you can extend the trial by running some commands from your command prompt.
Hope this helps.